The Subframe Market Grows and Specializes

[tyoneal]

Part 1

Hello:

This may or may not be interesting for most, however I did a small amount of research into what Sub frames makers are out there and what is the current market offering by them.

I will warn you, this is a very long post, so if it's just going to bore you or P*ss you off, feel free to pass on it.

I wasn't able to get EVERY product of it's kind on the market, but just a sampling. If you know some that could be added to this list, please add them to it.

Some of the samples I took I didn't include all the links associated with it, so please if your interested an all the information, click on any links you can find with regards to the sub frame.

As mentioned in another post some companies are really broadening their product line to hit all the sub frame niches that might be in the market. One company offered 4 different. (Drag, Road Race, Wide Track, and replacement)

Others are changing the track width from -2 inches to +4 inches.

Here is what I have found so far. Please add to it.

Thanks,

Ty O'neal

BTW: Here are some specs for a Trans-Am racer of the day.
==========================================
DIMENSIONS
Wheelbase, in................................................ ..................................108"

Track f/r in.............................................. .....................................61/60

Ground clearance in .................................................. ...........................4"

Curb wt (w/o fuel) lb .................................................. ....................2980

Distribution f/r................................................. ..............................52/48

CHASSIS AND SUSPENSION
Frame type: Unitized with separate front subframe.

Front suspenson: Independent by S.L A., coil springs. Koni adj racing shocks spec .88 in anti-roll bar. Modified with longer spindle, eccentric plastic bushings.

Rere suspension: Hotchkiss-type live axle, multi-leaf springs, Koni adjustable racing shocks, .50 in. anti roll bar. Panhard track bar, Steering: Recirculating ball oa ratio, 17 to 1.

Brakes: Corvette 11.75 to 1. in dia. disc, front & rear; vacum assist' adjustable proportioning vavle,

Ferodo DS11 pads.

Wheels: 15 x 9 Minilite magnesium wheels.

Tires: Goodyear Blue Streak Racing. 5.00/11.30-15 front. (9 in tread)

600./12.30-15 rear, (11 in tread).

ENGINE
Type.............................................. ...............................ohv V-8 by Traco

Bore x Stroke, in .................................................. ..................4.02X3.00

Displacement, cu . in................................................ .....................304.6

Compression ratio............................................. .............................12.1

Fuel required.........................Sunoco 260 Super Premimu (103 octane)

Bhp @ rpm............................................... ..........................440 @ 7200

Carburetion 2 x 4 Holley 600 cfm, cross-ram manifold

Valve train: Mechanical lifters, HD pushrods.

Microsealed HD rocker arms, Traco valves & springs.

Camshaft: Chevrolet high perf (PN 3927140).

Tming deg. int. / exh........................53-100 / 101-65

Duration: int. /exh ...................................333/346.

Lift, in. int / exh .................................473 / .492

Exhaust system: Steel tubing headers ...................1.75 dia. 36 in . tuned length : 36 in. tuned length; 3.5-in. dia. colector pipe. 44 in. tuned length

DRIVE TRAIN
CLUTCH: Schiefer competition single dry disc.

Transmission: HD Close ratio 4-speed "rock crusher" (m22).

Gear Ratios:

1st......................................2.20

2nd....................................1.64

3rd....................................1.27

4th....................................1.00

Final drive: Hypoid w / Positrac limited slip. 12 axle ratios available, from 3.07 to 5.13
===========================================
AFter Market Sub frames
===========================================
I just tried to post this and it looked sloppy, I'm going to try again. If I fail, the information will be there it will just be harder to read. I did however also post the links associated with each of them.

BTW: You will find the competitors doing a lot of comparison between themselves. It's a bit like the current state of politics.

In any case, Enjoy!

Ty


On Sep 13, 2007, at 3:27 AM, Ty O'Neal wrote:
=============================================


http://www.jimmeyerracing.com/cm1.html

2795 S.E. 23rd ¤ Lincoln City, OR 97367 ¤ Order (800) 824-1752 ¤ Tech (541) 994-7717 ¤ Fax (541) 994-2397


'67-81 CAMARO & FIREBIRD PRO-TOURING

The most adjustable, superior, Bolt-In handling package, you won't believe!


PACKAGE INCLUDES:
- Tube A-arms, 1" upper 1 ¼" lower
- Upper A-arms 1" X .156" wall D.O.M (Drawn Over Mandrel) tubing
- Lower A-arms 1 ¼" X .156" wall D.O.M. tubing
- Body mounts, core support, bumper bracket mounts, engine/trans mounts-BB or SB
- GM, Baer, or Wilwood Disc Brakes
- QA1 adjustable coilover shocks or AirRide Tech. Shockwave Bags
- Super strong 2x4 box tube construction with beefy tubular structural supports
- 1" dia. anti-sway bar
- Rack & pinion steering

FULLY ADJUSTABLE:
- Upper A-arms
- Stance 3-4"
- 12-position QA1 coilover shocks
- multi-position trans mount

A new custom designed, jig-built, Pro-Touring, direct replacement subframe with Twenty First Century handling, stopping, and steering is now available from Jim Meyer Racing Products for the 1970-81 Camaro. This fully adjustable bolt-in subframe features 3-4-inches of stance adjustment, has adjustable upper tubular A-arms with either of Jim Meyer’s custom drop spindles or stock replacement spindles and is complete with a pre-drilled trans crossmember for all the popular GM & most aftermarket transmissions.

The beefy tubular construction offers a narrower 60-inch front track that will handle either BB or SB power. The new 2 X 4 X .188-inch wall subframe has more header room then stock and will accept 10-inch wide front wheels/tires. It also features mounts for stock core support, engine and trans, body mounts and bumper bracket mounts all in their stock locations.

The standard package includes 11-inch GM disc brakes, 1-inch diameter anti-sway bar, manual rack-and-pinion steering, and QA1 adjustable coilover shocks. Your options include either Baer (13 or 14-inch Disc) or Wilwood (12.19 or 13-inch) super stoppers, two-inch Jim Meyer drop spindles, power rack-and-pinion steering, Air Ride Technologies ShockWave suspension system and nickel plated components.

For more information contact Jim Meyer Racing Products, Inc.

1967-1969 Sub frame
The Bolt-In Subframe features a 59" track width, which is 3" narrower than stock.
The one-inch anti-sway bar (A) comes with the standard package. (Click to enlarge these photos, your back button will bring you back to this page.)
(PICTURES DIDN"T POST)
The Pro-Touring Subframe is available with nickel plated components. On Pro-Touring Subframe, the front frame horns accept stock Bumper Brackets and core support in their stock locations.

The new Pro-Touring direct replacement subframe is designed to accept up to a 10" wide wheel/tire combination.

The Jim Meyer GM style spindles with 11" GM Rotors and Calipers are featured in the standard package. Optional Baer SuperStoppers (13" or 14") and Wilwood 12.19 or 13-inch are a direct replacement upgrade.

The standard suspension package features QA1 12-position adjustable coilover shocks, or our adjustable Vari shocks, or the optional ShockWave Air suspension system (shown) will give you the stance and the look you like best.

Beefy engine mounts (A) will accept BB/SB motor mounts. (B) The 2x4x.188-inch wall box tube crossmember is pulse-tig welded to the 2x4 rails. (C) Optional Power Rack.

The new Jim Meyer Subframe design includes A 3-position adjustable upper coilover mount for about 3-4" of stance adjustment. (A)

The fully adjustable trans crossmember will accept 6 of the most popular GM transmissions and most aftermarket transmissions.
Our crossmember brackets for the inside of the frame rails feature all the correct holes to accept any GM transmission length.

The upper offset coilover mount bracket can be flipped for even more stance adjustment (A). This is possibly the most adjustable stance subframe in the marketplace! The upper A-arms are fully adjustable for camber and caster to give you the handling the way you like to drive (under steer or over steer).

Stock body mounts are all in their stock locations. Clean pulse tig-welds connect the vertical 2x4 box tube to the horizontal transition box tube.
=============================================
End of Part 1